[PATCH] imx8m: ddr_init: Move ddr_init() messages to debug level

[sbabic at denx.de]

> Currently inside ddr_init() there is a mix of printf() and debug()
> level messages.
> Since this type of information is useful for debug purposes,
> convert all of them to debug level for consistency.
> Signed-off-by: Fabio Estevam <festevam at gmail.com>
> Reviewed-by: Peng Fan <peng.fan at nxp.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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